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Product · fedify-dev

hollo

2 known vulnerabilities.

hollo at a glance

Last 12 months
1
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 1 1 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 1 vulnerability March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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Most common weaknesses

All Critical High Medium Low Exploited only Public exploit

2 results · Feed

  • High 7.5
    CVE-2026-25808

    Hollo DMs get leaked and can be seen on Webfinger Browser

    Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Prior to 0.6.20 and 0.7.2, there is a security vulnerability where DMs and followers-only posts were exposed through the ActivityPub outbox endpoint without …

    fedify-dev hollo
  • Medium 6.1
    CVE-2025-53941

    Hollo renders posts received with form elements and allows submission

    Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Versions prior to 0.6.5 allow HTML form elements to be submitted, making the software vulnerable to HTML injection. Version 0.6.5 fixes the issue.

    fedify-dev hollo